(function (global, factory) {

    if (typeof define === "function" && define.amd) {

        define([], factory);

    } else if (typeof exports !== "undefined") {

        factory();

    } else {

        var mod = {

            exports: {}

        };

        factory();

        global.FileSaver = mod.exports;

    }

})(this, function () {

    "use strict";


    /*

    * FileSaver.js

    * A saveAs() FileSaver implementation.

    *

    * By Eli Grey, http://eligrey.com

    *

    * License : https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md (MIT)

    * source  : http://purl.eligrey.com/github/FileSaver.js

    */

    // The one and only way of getting global scope in all environments

    // https://stackoverflow.com/q/3277182/1008999

    var _global = typeof window === 'object' && window.window === window ? window : typeof self === 'object' && self.self === self ? self : typeof global === 'object' && global.global === global ? global : void 0;


    function bom(blob, opts) {

        if (typeof opts === 'undefined') opts = {

            autoBom: false

        }; else if (typeof opts !== 'object') {

            console.warn('Deprecated: Expected third argument to be a object');

            opts = {

                autoBom: !opts

            };

        } // prepend BOM for UTF-8 XML and text/* types (including HTML)

        // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF


        if (opts.autoBom && /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {

            return new Blob([String.fromCharCode(0xFEFF), blob], {

                type: blob.type

            });

        }


        return blob;

    }


    function download(url, name, opts) {

        var xhr = new XMLHttpRequest();

        xhr.open('GET', url);

        xhr.responseType = 'blob';


        xhr.onload = function () {

            saveAs(xhr.response, name, opts);

        };


        xhr.onerror = function () {

            console.error('could not download file');

        };


        xhr.send();

    }


    function corsEnabled(url) {

        var xhr = new XMLHttpRequest(); // use sync to avoid popup blocker


        xhr.open('HEAD', url, false);


        try {

            xhr.send();

        } catch (e) {
        }


        return xhr.status >= 200 && xhr.status <= 299;

    } // `a.click()` doesn't work for all browsers (#465)


    function click(node) {

        try {

            node.dispatchEvent(new MouseEvent('click'));

        } catch (e) {

            var evt = document.createEvent('MouseEvents');

            evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80, 20, false, false, false, false, 0, null);

            node.dispatchEvent(evt);

        }

    }


    var saveAs = _global.saveAs || ( // probably in some web worker

        typeof window !== 'object' || window !== _global ? function saveAs() {
            }

            /* noop */

            // Use download attribute first if possible (#193 Lumia mobile)

            : 'download' in HTMLAnchorElement.prototype ? function saveAs(blob, name, opts) {

                var URL = _global.URL || _global.webkitURL;

                var a = document.createElement('a');

                name = name || blob.name || 'download';

                a.download = name;

                a.rel = 'noopener'; // tabnabbing

                // TODO: detect chrome extensions & packaged apps

                // a.target = '_blank'


                if (typeof blob === 'string') {

                    // Support regular links

                    a.href = blob;


                    if (a.origin !== location.origin) {

                        corsEnabled(a.href) ? download(blob, name, opts) : click(a, a.target = '_blank');

                    } else {

                        click(a);

                    }

                } else {

                    // Support blobs

                    a.href = URL.createObjectURL(blob);

                    setTimeout(function () {

                        URL.revokeObjectURL(a.href);

                    }, 4E4); // 40s


                    setTimeout(function () {

                        click(a);

                    }, 0);

                }

            } // Use msSaveOrOpenBlob as a second approach

            : 'msSaveOrOpenBlob' in navigator ? function saveAs(blob, name, opts) {

                    name = name || blob.name || 'download';


                    if (typeof blob === 'string') {

                        if (corsEnabled(blob)) {

                            download(blob, name, opts);

                        } else {

                            var a = document.createElement('a');

                            a.href = blob;

                            a.target = '_blank';

                            setTimeout(function () {

                                click(a);

                            });

                        }

                    } else {

                        navigator.msSaveOrOpenBlob(bom(blob, opts), name);

                    }

                } // Fallback to using FileReader and a popup

                : function saveAs(blob, name, opts, popup) {

                    // Open a popup immediately do go around popup blocker

                    // Mostly only available on user interaction and the fileReader is async so...

                    popup = popup || open('', '_blank');


                    if (popup) {

                        popup.document.title = popup.document.body.innerText = 'downloading...';

                    }


                    if (typeof blob === 'string') return download(blob, name, opts);

                    var force = blob.type === 'application/octet-stream';


                    var isSafari = /constructor/i.test(_global.HTMLElement) || _global.safari;


                    var isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent);


                    if ((isChromeIOS || force && isSafari) && typeof FileReader === 'object') {

                        // Safari doesn't allow downloading of blob URLs

                        var reader = new FileReader();


                        reader.onloadend = function () {

                            var url = reader.result;

                            url = isChromeIOS ? url : url.replace(/^data:[^;]*;/, 'data:attachment/file;');

                            if (popup) popup.location.href = url; else location = url;

                            popup = null; // reverse-tabnabbing #460

                        };


                        reader.readAsDataURL(blob);

                    } else {

                        var URL = _global.URL || _global.webkitURL;

                        var url = URL.createObjectURL(blob);

                        if (popup) popup.location = url; else location.href = url;

                        popup = null; // reverse-tabnabbing #460


                        setTimeout(function () {

                            URL.revokeObjectURL(url);

                        }, 4E4); // 40s

                    }

                });

    _global.saveAs = saveAs.saveAs = saveAs;


    if (typeof module !== 'undefined') {

        module.exports = saveAs;

    }

});